James m



(No Model.) .l

- J. M. ADKINS 8v R..G. BERRY.

LOCK STOP COCK.

W ATTOHNE.

l "UNITED STATES Trice.

PATENT JAMES M. ADKINS AND YROBERT C. BERRY, OF INDIANAPOLIS, INDIANA.

LOCK STOP-COCK.

SPECIFICATION forming part of Letters Patent No. 506,087, dated October3, 1893.

` Appiicaio'n med May 19, 1189s. sean No. 474,738. N0 moda.)

To all whom t may concern:

Be it known that We, JAMES M. ADKINS and ROBERT C. BERRY, citizens ofthe United States, residing at Indianapolis, in the county of Marion andState of Indiana, have invented certain new and useful Improvements inLock Stop-Cocks, of which the following is a specification.

The object of our said invention is to produce a stop cock which shallbe looked in the desired position, and thus prevented from being movedfrom that position until it is unlocked.

A stop cock embodying said invention will be first fully described, andthe novel features thereof then pointed out in the claims.

Referring to the accompanying drawings, which are made a part hereof,and on which similar letters of reference indicate similar parts,vFigure 1 is a central. vertical sectional view of a stop cock providedwith our said invention; Fig. 2 an under side plan View of the handlethereof containing the lock bolt; Fig. 3 a detail transverse sectionalView, on an enlarged scale, on the dotted line 3 3 in Fig. 1, and Fig. 4a detail horizontal sectional view, also on an enlarged scale, on thedotted line 4 et in Figs. 1 and 3.

In said drawings the portions marked A represent the body of the device;B the valve or gate; C lthe handle; D the lock bolt, and E the rockshaft for operating said lock bolt.

The parts A and B are or may be of any ordinary or desired construction.As shown, the part A has a bushing A', which, as Well as the part B, isof brass, While the part A is preferably of iron. On the upper side ofthe part A is an annular seat to receive an annular liange c of thehandle C, and also a socket for the point of the lock bolt D, as shownin Fig. 1. The valve B has a spring S by which it is held up into closerelation with the valve seat.

The handle C is fitted onto the stem B of' the valve or gate B, to whichit may be secured by means of a pin or bolt b. This stem and the hole inthe handle which passes over it, are preferably square, although theymay be round, hexagon, Octagon, orA any other desired shape. Within thehandle B are also formed recesses or perforations to receive the lockbolt D and'its operating mechanism, and

over the open ends of the perforation for the bolt, We place a cover C',usually mounted on a hinge pivot c.

The lock bolt D is preferably a round bolt seated in a perforation inthe under side of the handle C, as shovvnfr'nostV plainly'n Fig. 1, andbehindsra'id Vbolt isa spring d, which forces it outward and intoengagement with the socket or perforation provided for that purpose inthe top of the part A. It has a mortise centrallylocatedwtherein bymeans of which it may be manipulated by-a key or wrench.

The shaft E passes transversely through the handle C, and carries an armE which extends out and enters the mortise in the lock bolt D, and, bythis means, as said shaft is rocked, the bolt may be raised. Theperforation extending transversely through the handle C should beround,in order to permit the parts to rock therein, and, in lorder toprovide a well iitting bearing, bushings e are fitted over the ends ofthe shaft alongside of the hub of the arm E', as shown most plainly inFigs. 3 and 4. These t closely onto said shaft E, and also within thetransverse perforation in the handle C. The ends of the shaft E areshown as extendingiout somewhat beyond the bushings, and as beingsquare, thus providing convenient meansl of attachmentfor the key orsocket Wrench by which the lock may be manipulated. Other forms of keysor wrenches may be used instead if desired. The ends are also shown asslotted to receive a flat key.

Our said invention is especially applicable to places Where it isimportant that the cock be held in the position it is left,withoutdanger of accidental change of position. It operates as follows:When the handle is swung around to the desired position, the bolt Ddrops into the socket in the part A, as shown in Fig. 1, and thus, aswill be readily understood, the parts are locked to that position,u'ntil purposely disengaged. When it is desired to `change it, a key orwrench is placed on the end of the shaft E, and it is turned so that thearm E will lift the bolt D and disengage it from the socket in the partA,When the handle may be swung around to any desired point, where thebolt may engage with another socket in the part A, thus holding it tothat position.

Having thus fully described our said invention, what we claim as new,and desire to secure by Letters Patent, is-

l. The combination, in a lock stop-cock, of the main portion A, thevalve partB therein, the handle D secured upon said Valve part, the lockbolt D mounted in said handle portion C and adapted to engage with asuitable perforation in the main part A, the shaft E also mounted in thehandle, and having an arm E which extends out and engages with the lockbolt D, whereby, when said shaft is operated, said bolt will be raisedout of engagement with said perforation, substantially as shown anddescribed.

2. The combination, in alock stop-cock, of the main part A having aperforation for a lock bolt, a valve part B mounted in said main part, ahandle C mounted upon said i valve part and having a perforation, a lockbolt D mounted in said perforation, a spring d inserted behind said lockbolt, a rock shaft E having an arm for operating said lock bolt, andbushings e mounted on said shaft on each side of said arm, substantiallyas and for the purposes set forth.

3. The combination, in a lock stop-cock, of the main part A, the valvepart B mounted therein, a handle C secured to said valve, a perforationin said handle, a lock-bolt mounted in said perforation, a secondperforation in said handle extending through from side to side, a shaftlocated in said perforation and provided with an arm extending outandengaging with the lock-bolt, and a cover mounted on said handle andadapted to cover the ends of said perforation, all substantially asshown and described.

In Witness whereof We have hereunto set our hands and seals, atIndianapolis, Indiana, this 15th day of May, A. D. 1893.

JAMES M. ADKINS. [L ROBERT C. BERRY. LL.

Witnesses: t

CHESTER BRADFORD, JAMES A. WALSH.

